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<FONT color="green">001</FONT>    package org.hackystat.sensor.eclipse.addon;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.net.URI;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.ArrayList;<a name="line.4"></a>
<FONT color="green">005</FONT>    import java.util.HashMap;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.Iterator;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.util.List;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.Map;<a name="line.8"></a>
<FONT color="green">009</FONT>    <a name="line.9"></a>
<FONT color="green">010</FONT>    import org.eclipse.core.runtime.IPath;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.eclipse.jdt.core.ElementChangedEvent;<a name="line.11"></a>
<FONT color="green">012</FONT>    import org.eclipse.jdt.core.IElementChangedListener;<a name="line.12"></a>
<FONT color="green">013</FONT>    import org.eclipse.jdt.core.IJavaElement;<a name="line.13"></a>
<FONT color="green">014</FONT>    import org.eclipse.jdt.core.IJavaElementDelta;<a name="line.14"></a>
<FONT color="green">015</FONT>    import org.hackystat.sensor.eclipse.EclipseSensor;<a name="line.15"></a>
<FONT color="green">016</FONT>    import org.hackystat.sensor.eclipse.EclipseSensorConstants;<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    /**<a name="line.18"></a>
<FONT color="green">019</FONT>     * Listens to the java element change events to get incremental work on java objects and collect <a name="line.19"></a>
<FONT color="green">020</FONT>     * refactoring information for test-driven development analysis purpose. It's declared as package<a name="line.20"></a>
<FONT color="green">021</FONT>     * private so that it can only be instantiated by Eclise sensor.<a name="line.21"></a>
<FONT color="green">022</FONT>     * <a name="line.22"></a>
<FONT color="green">023</FONT>     * @author Hongbing Kou<a name="line.23"></a>
<FONT color="green">024</FONT>     * @version $Id$<a name="line.24"></a>
<FONT color="green">025</FONT>     */<a name="line.25"></a>
<FONT color="green">026</FONT>    public class JavaStructureChangeDetector implements IElementChangedListener {<a name="line.26"></a>
<FONT color="green">027</FONT>      /** Eclipse sensor which is used to send out hackystat data. */<a name="line.27"></a>
<FONT color="green">028</FONT>      private EclipseSensor sensor;<a name="line.28"></a>
<FONT color="green">029</FONT>    <a name="line.29"></a>
<FONT color="green">030</FONT>      /**<a name="line.30"></a>
<FONT color="green">031</FONT>       * Instantiates the JavaStructureDetector instance with Eclipse sensor.<a name="line.31"></a>
<FONT color="green">032</FONT>       * <a name="line.32"></a>
<FONT color="green">033</FONT>       * @param sensor Eclipse sensor.<a name="line.33"></a>
<FONT color="green">034</FONT>       */<a name="line.34"></a>
<FONT color="green">035</FONT>      public JavaStructureChangeDetector(EclipseSensor sensor) {<a name="line.35"></a>
<FONT color="green">036</FONT>        this.sensor = sensor;<a name="line.36"></a>
<FONT color="green">037</FONT>      }<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>      /**<a name="line.39"></a>
<FONT color="green">040</FONT>       * Implements the element change response.<a name="line.40"></a>
<FONT color="green">041</FONT>       * <a name="line.41"></a>
<FONT color="green">042</FONT>       * @param event Element change event.<a name="line.42"></a>
<FONT color="green">043</FONT>       */<a name="line.43"></a>
<FONT color="green">044</FONT>      public void elementChanged(ElementChangedEvent event) {<a name="line.44"></a>
<FONT color="green">045</FONT>        //IJavaElementDelta jed = event.getDelta().getAffectedChildren()[0];<a name="line.45"></a>
<FONT color="green">046</FONT>        IJavaElementDelta[] childrenChanges = event.getDelta().getAffectedChildren(); <a name="line.46"></a>
<FONT color="green">047</FONT>        <a name="line.47"></a>
<FONT color="green">048</FONT>        if (childrenChanges != null &amp;&amp; childrenChanges.length &gt; 0) {<a name="line.48"></a>
<FONT color="green">049</FONT>          javaObjectChange(childrenChanges[0]);<a name="line.49"></a>
<FONT color="green">050</FONT>        }<a name="line.50"></a>
<FONT color="green">051</FONT>      }<a name="line.51"></a>
<FONT color="green">052</FONT>      <a name="line.52"></a>
<FONT color="green">053</FONT>      /**<a name="line.53"></a>
<FONT color="green">054</FONT>       * Process the editng on java element changes.<a name="line.54"></a>
<FONT color="green">055</FONT>       * <a name="line.55"></a>
<FONT color="green">056</FONT>       * @param jed Java element delta change.<a name="line.56"></a>
<FONT color="green">057</FONT>       */<a name="line.57"></a>
<FONT color="green">058</FONT>      private void javaObjectChange(IJavaElementDelta jed) {<a name="line.58"></a>
<FONT color="green">059</FONT>        List&lt;IJavaElementDelta&gt; additions = new ArrayList&lt;IJavaElementDelta&gt;();<a name="line.59"></a>
<FONT color="green">060</FONT>        List&lt;IJavaElementDelta&gt; deletions = new ArrayList&lt;IJavaElementDelta&gt;();<a name="line.60"></a>
<FONT color="green">061</FONT>        <a name="line.61"></a>
<FONT color="green">062</FONT>        // Traverse the delta change tree for refactoring activity<a name="line.62"></a>
<FONT color="green">063</FONT>        traverse(jed, additions, deletions);<a name="line.63"></a>
<FONT color="green">064</FONT>        <a name="line.64"></a>
<FONT color="green">065</FONT>        //  Gets the location of java file.<a name="line.65"></a>
<FONT color="green">066</FONT>        IPath javaFile = jed.getElement().getResource().getLocation();<a name="line.66"></a>
<FONT color="green">067</FONT>            <a name="line.67"></a>
<FONT color="green">068</FONT>        // No java structure change<a name="line.68"></a>
<FONT color="green">069</FONT>        if (additions.isEmpty() &amp;&amp; deletions.isEmpty()) {<a name="line.69"></a>
<FONT color="green">070</FONT>          return;      <a name="line.70"></a>
<FONT color="green">071</FONT>        }<a name="line.71"></a>
<FONT color="green">072</FONT>        // Addition, deletion, renaming activity.<a name="line.72"></a>
<FONT color="green">073</FONT>        else if (additions.size() == 1 || deletions.size() == 1) {<a name="line.73"></a>
<FONT color="green">074</FONT>          if (deletions.isEmpty()) {<a name="line.74"></a>
<FONT color="green">075</FONT>            processUnary(javaFile, "Add", (IJavaElementDelta) additions.get(0));        <a name="line.75"></a>
<FONT color="green">076</FONT>          }<a name="line.76"></a>
<FONT color="green">077</FONT>          else if (additions.isEmpty()) {<a name="line.77"></a>
<FONT color="green">078</FONT>            processUnary(javaFile, "Remove", (IJavaElementDelta) deletions.get(0));<a name="line.78"></a>
<FONT color="green">079</FONT>          }<a name="line.79"></a>
<FONT color="green">080</FONT>          else if (deletions.size() == 1) {<a name="line.80"></a>
<FONT color="green">081</FONT>            IJavaElementDelta fromDelta = (IJavaElementDelta) deletions.get(0);<a name="line.81"></a>
<FONT color="green">082</FONT>            IJavaElementDelta toDelta = (IJavaElementDelta) additions.get(0);<a name="line.82"></a>
<FONT color="green">083</FONT>            if (fromDelta.getElement().getParent().equals(toDelta.getElement().getParent())) { <a name="line.83"></a>
<FONT color="green">084</FONT>              processRenameRefactor(javaFile, fromDelta, toDelta); <a name="line.84"></a>
<FONT color="green">085</FONT>            }<a name="line.85"></a>
<FONT color="green">086</FONT>            else {<a name="line.86"></a>
<FONT color="green">087</FONT>              javaFile = fromDelta.getElement().getResource().getLocation();<a name="line.87"></a>
<FONT color="green">088</FONT>              processMoveRefactor(javaFile, fromDelta.getElement(), fromDelta.getElement().getParent(), <a name="line.88"></a>
<FONT color="green">089</FONT>                  toDelta.getElement().getParent());<a name="line.89"></a>
<FONT color="green">090</FONT>            }<a name="line.90"></a>
<FONT color="green">091</FONT>          }<a name="line.91"></a>
<FONT color="green">092</FONT>        }    <a name="line.92"></a>
<FONT color="green">093</FONT>        // Massive addition by copying<a name="line.93"></a>
<FONT color="green">094</FONT>        else if (additions.size() &gt; 1) {<a name="line.94"></a>
<FONT color="green">095</FONT>          for (Iterator i = additions.iterator(); i.hasNext();) {<a name="line.95"></a>
<FONT color="green">096</FONT>            processUnary(javaFile, "Add", (IJavaElementDelta) i.next());<a name="line.96"></a>
<FONT color="green">097</FONT>          }<a name="line.97"></a>
<FONT color="green">098</FONT>        }<a name="line.98"></a>
<FONT color="green">099</FONT>        // Massive block deletion<a name="line.99"></a>
<FONT color="green">100</FONT>        else if (deletions.size() &gt; 1) {<a name="line.100"></a>
<FONT color="green">101</FONT>          for (Iterator i = deletions.iterator(); i.hasNext();) {<a name="line.101"></a>
<FONT color="green">102</FONT>            processUnary(javaFile, "Remove", (IJavaElementDelta) i.next());<a name="line.102"></a>
<FONT color="green">103</FONT>          }<a name="line.103"></a>
<FONT color="green">104</FONT>        }    <a name="line.104"></a>
<FONT color="green">105</FONT>      }<a name="line.105"></a>
<FONT color="green">106</FONT>    <a name="line.106"></a>
<FONT color="green">107</FONT>      /**<a name="line.107"></a>
<FONT color="green">108</FONT>       * Constructs and sends the java element change data.<a name="line.108"></a>
<FONT color="green">109</FONT>       * <a name="line.109"></a>
<FONT color="green">110</FONT>       * @param javaFile Associated file.<a name="line.110"></a>
<FONT color="green">111</FONT>       * @param op Operation<a name="line.111"></a>
<FONT color="green">112</FONT>       * @param delta Delta change element<a name="line.112"></a>
<FONT color="green">113</FONT>       */<a name="line.113"></a>
<FONT color="green">114</FONT>      private void processUnary(IPath javaFile, String op, IJavaElementDelta delta) {<a name="line.114"></a>
<FONT color="green">115</FONT>        IJavaElement element = delta.getElement();<a name="line.115"></a>
<FONT color="green">116</FONT>    <a name="line.116"></a>
<FONT color="green">117</FONT>        // Stop if there is no associated element. <a name="line.117"></a>
<FONT color="green">118</FONT>        if (javaFile == null || element == null || element.getResource() == null) {<a name="line.118"></a>
<FONT color="green">119</FONT>          return;<a name="line.119"></a>
<FONT color="green">120</FONT>        }<a name="line.120"></a>
<FONT color="green">121</FONT>        <a name="line.121"></a>
<FONT color="green">122</FONT>        String type = retrieveType(element);<a name="line.122"></a>
<FONT color="green">123</FONT>        // If type is not field, method, import and class do nothing.<a name="line.123"></a>
<FONT color="green">124</FONT>        if (type == null) {<a name="line.124"></a>
<FONT color="green">125</FONT>          return;  <a name="line.125"></a>
<FONT color="green">126</FONT>        }<a name="line.126"></a>
<FONT color="green">127</FONT>        <a name="line.127"></a>
<FONT color="green">128</FONT>        IPath classFileName = javaFile;<a name="line.128"></a>
<FONT color="green">129</FONT>        if (EclipseSensorConstants.CLASS.equals(type)) {<a name="line.129"></a>
<FONT color="green">130</FONT>          classFileName = element.getResource().getLocation();<a name="line.130"></a>
<FONT color="green">131</FONT>        }  <a name="line.131"></a>
<FONT color="green">132</FONT>        <a name="line.132"></a>
<FONT color="green">133</FONT>        // Only deal with java file.<a name="line.133"></a>
<FONT color="green">134</FONT>        if (!EclipseSensorConstants.JAVA.equals(classFileName.getFileExtension())) {<a name="line.134"></a>
<FONT color="green">135</FONT>          return;<a name="line.135"></a>
<FONT color="green">136</FONT>        }<a name="line.136"></a>
<FONT color="green">137</FONT>        <a name="line.137"></a>
<FONT color="green">138</FONT>        String name = retrieveName(element);<a name="line.138"></a>
<FONT color="green">139</FONT>        //String toName = <a name="line.139"></a>
<FONT color="green">140</FONT>        if (name != null &amp;&amp; !"".equals(name)) {<a name="line.140"></a>
<FONT color="green">141</FONT>          Map&lt;String, String&gt; devEventPMap = new HashMap&lt;String, String&gt;();<a name="line.141"></a>
<FONT color="green">142</FONT>          devEventPMap.put("Subtype", "ProgramUnit");<a name="line.142"></a>
<FONT color="green">143</FONT>          devEventPMap.put("Subsubtype", op);<a name="line.143"></a>
<FONT color="green">144</FONT>          devEventPMap.put("Language", EclipseSensorConstants.JAVA);<a name="line.144"></a>
<FONT color="green">145</FONT>          devEventPMap.put("Unit-Type", type);<a name="line.145"></a>
<FONT color="green">146</FONT>          devEventPMap.put("Unit-Name", name);<a name="line.146"></a>
<FONT color="green">147</FONT>          <a name="line.147"></a>
<FONT color="green">148</FONT>          URI resource = element.getResource().getLocationURI();<a name="line.148"></a>
<FONT color="green">149</FONT>          this.sensor.addDevEvent("Edit", resource, devEventPMap, op + " " + name);<a name="line.149"></a>
<FONT color="green">150</FONT>        }<a name="line.150"></a>
<FONT color="green">151</FONT>      }<a name="line.151"></a>
<FONT color="green">152</FONT>    <a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>      /**<a name="line.154"></a>
<FONT color="green">155</FONT>       * Constructs and send of the java element change data.<a name="line.155"></a>
<FONT color="green">156</FONT>       * <a name="line.156"></a>
<FONT color="green">157</FONT>       * @param javaFile Associated file.<a name="line.157"></a>
<FONT color="green">158</FONT>       * @param fromDelta Change from delta.<a name="line.158"></a>
<FONT color="green">159</FONT>       * @param toDelta Change to delta.<a name="line.159"></a>
<FONT color="green">160</FONT>       */<a name="line.160"></a>
<FONT color="green">161</FONT>      private void processRenameRefactor(IPath javaFile, IJavaElementDelta fromDelta, <a name="line.161"></a>
<FONT color="green">162</FONT>          IJavaElementDelta toDelta) {<a name="line.162"></a>
<FONT color="green">163</FONT>        String typeName = retrieveType(toDelta.getElement());<a name="line.163"></a>
<FONT color="green">164</FONT>        <a name="line.164"></a>
<FONT color="green">165</FONT>        IPath classFileName = javaFile;<a name="line.165"></a>
<FONT color="green">166</FONT>        if (EclipseSensorConstants.CLASS.equals(typeName)) {<a name="line.166"></a>
<FONT color="green">167</FONT>          classFileName = fromDelta.getElement().getResource().getLocation();<a name="line.167"></a>
<FONT color="green">168</FONT>        }<a name="line.168"></a>
<FONT color="green">169</FONT>        else if ("Package".equals(typeName)) {<a name="line.169"></a>
<FONT color="green">170</FONT>          classFileName = fromDelta.getElement().getResource().getLocation();<a name="line.170"></a>
<FONT color="green">171</FONT>        }<a name="line.171"></a>
<FONT color="green">172</FONT>    <a name="line.172"></a>
<FONT color="green">173</FONT>        // Only deal with java file.<a name="line.173"></a>
<FONT color="green">174</FONT>        if (!EclipseSensorConstants.JAVA.equals(classFileName.getFileExtension())) {<a name="line.174"></a>
<FONT color="green">175</FONT>          return;<a name="line.175"></a>
<FONT color="green">176</FONT>        }<a name="line.176"></a>
<FONT color="green">177</FONT>        <a name="line.177"></a>
<FONT color="green">178</FONT>        String fromName = retrieveName(fromDelta.getElement());<a name="line.178"></a>
<FONT color="green">179</FONT>        String toName = retrieveName(toDelta.getElement());<a name="line.179"></a>
<FONT color="green">180</FONT>        <a name="line.180"></a>
<FONT color="green">181</FONT>        if (fromName != null &amp;&amp; !"".equals(fromName) &amp;&amp; toName != null &amp;&amp; !"".equals(toName)) {<a name="line.181"></a>
<FONT color="green">182</FONT>          StringBuffer msgBuf = new StringBuffer();<a name="line.182"></a>
<FONT color="green">183</FONT>          msgBuf.append("Refactor : Rename#").append(typeName).append('#').append(fromName)<a name="line.183"></a>
<FONT color="green">184</FONT>                .append(" -&gt; ").append(toName);<a name="line.184"></a>
<FONT color="green">185</FONT>    <a name="line.185"></a>
<FONT color="green">186</FONT>          Map&lt;String, String&gt; devEventPMap = new HashMap&lt;String, String&gt;();<a name="line.186"></a>
<FONT color="green">187</FONT>          devEventPMap.put("Subtype", "ProgramUnit");<a name="line.187"></a>
<FONT color="green">188</FONT>          devEventPMap.put("Subsubtype", "Rename");<a name="line.188"></a>
<FONT color="green">189</FONT>          devEventPMap.put("Language", EclipseSensorConstants.JAVA);<a name="line.189"></a>
<FONT color="green">190</FONT>          devEventPMap.put("Unit-Type", typeName);<a name="line.190"></a>
<FONT color="green">191</FONT>          devEventPMap.put("From-Unit-Name", fromName);<a name="line.191"></a>
<FONT color="green">192</FONT>          devEventPMap.put("To-Unit-Name", toName);<a name="line.192"></a>
<FONT color="green">193</FONT>    <a name="line.193"></a>
<FONT color="green">194</FONT>          URI resource = fromDelta.getElement().getResource().getLocationURI();<a name="line.194"></a>
<FONT color="green">195</FONT>          this.sensor.addDevEvent("Edit", resource, devEventPMap, msgBuf.toString());<a name="line.195"></a>
<FONT color="green">196</FONT>        }<a name="line.196"></a>
<FONT color="green">197</FONT>      }<a name="line.197"></a>
<FONT color="green">198</FONT>      <a name="line.198"></a>
<FONT color="green">199</FONT>      /**<a name="line.199"></a>
<FONT color="green">200</FONT>       * Constructs and send of the java element change data.<a name="line.200"></a>
<FONT color="green">201</FONT>       * <a name="line.201"></a>
<FONT color="green">202</FONT>       * @param javaFile Associated file.<a name="line.202"></a>
<FONT color="green">203</FONT>       * @param element  Java Element to be moved.<a name="line.203"></a>
<FONT color="green">204</FONT>       * @param from Change from element.<a name="line.204"></a>
<FONT color="green">205</FONT>       * @param to Change to element.<a name="line.205"></a>
<FONT color="green">206</FONT>       */<a name="line.206"></a>
<FONT color="green">207</FONT>      private void processMoveRefactor(IPath javaFile, IJavaElement element, <a name="line.207"></a>
<FONT color="green">208</FONT>          IJavaElement from, IJavaElement to) {<a name="line.208"></a>
<FONT color="green">209</FONT>        String typeName = retrieveType(element);<a name="line.209"></a>
<FONT color="green">210</FONT>        <a name="line.210"></a>
<FONT color="green">211</FONT>        // Only deal with java file.<a name="line.211"></a>
<FONT color="green">212</FONT>        if (!EclipseSensorConstants.JAVA.equals(javaFile.getFileExtension())) {<a name="line.212"></a>
<FONT color="green">213</FONT>          return;<a name="line.213"></a>
<FONT color="green">214</FONT>        }<a name="line.214"></a>
<FONT color="green">215</FONT>        <a name="line.215"></a>
<FONT color="green">216</FONT>        String name = retrieveName(element);<a name="line.216"></a>
<FONT color="green">217</FONT>        String fromName = retrieveName(from);<a name="line.217"></a>
<FONT color="green">218</FONT>        String toName = retrieveName(to);<a name="line.218"></a>
<FONT color="green">219</FONT>        <a name="line.219"></a>
<FONT color="green">220</FONT>        // Put refactor data together with pound sigh separation and send it to Hackystat <a name="line.220"></a>
<FONT color="green">221</FONT>        // server as activity data.<a name="line.221"></a>
<FONT color="green">222</FONT>        if (fromName != null &amp;&amp; !"".equals(fromName) &amp;&amp; toName != null &amp;&amp; !"".equals(toName)) {<a name="line.222"></a>
<FONT color="green">223</FONT>          StringBuffer msgBuf = new StringBuffer();<a name="line.223"></a>
<FONT color="green">224</FONT>          msgBuf.append("Refactor : Move#").append(typeName).append('#').append(name).append('#').<a name="line.224"></a>
<FONT color="green">225</FONT>                 append(fromName).append(" -&gt; ").append(toName);<a name="line.225"></a>
<FONT color="green">226</FONT>          <a name="line.226"></a>
<FONT color="green">227</FONT>          Map&lt;String, String&gt; devEventRenameMap = new HashMap&lt;String, String&gt;();<a name="line.227"></a>
<FONT color="green">228</FONT>          devEventRenameMap.put("Subtype", "ProgramUnit");<a name="line.228"></a>
<FONT color="green">229</FONT>          devEventRenameMap.put("Subsubtype", "Move");<a name="line.229"></a>
<FONT color="green">230</FONT>          devEventRenameMap.put("Language", EclipseSensorConstants.JAVA);<a name="line.230"></a>
<FONT color="green">231</FONT>          devEventRenameMap.put("Unit-Type", typeName);<a name="line.231"></a>
<FONT color="green">232</FONT>          // return-type not available<a name="line.232"></a>
<FONT color="green">233</FONT>          devEventRenameMap.put("From-Unit-Name", fromName);<a name="line.233"></a>
<FONT color="green">234</FONT>          devEventRenameMap.put("To-Unit-Name", toName);<a name="line.234"></a>
<FONT color="green">235</FONT>          <a name="line.235"></a>
<FONT color="green">236</FONT>          URI resource = element.getResource().getLocationURI();<a name="line.236"></a>
<FONT color="green">237</FONT>          this.sensor.addDevEvent("Edit", resource, devEventRenameMap, msgBuf.toString());<a name="line.237"></a>
<FONT color="green">238</FONT>        }    <a name="line.238"></a>
<FONT color="green">239</FONT>      }<a name="line.239"></a>
<FONT color="green">240</FONT>      <a name="line.240"></a>
<FONT color="green">241</FONT>      /**<a name="line.241"></a>
<FONT color="green">242</FONT>       * Gets the element type.<a name="line.242"></a>
<FONT color="green">243</FONT>       * <a name="line.243"></a>
<FONT color="green">244</FONT>       * @param element Java element object<a name="line.244"></a>
<FONT color="green">245</FONT>       * @return Element type string (class, method, field or import).<a name="line.245"></a>
<FONT color="green">246</FONT>       */<a name="line.246"></a>
<FONT color="green">247</FONT>      private String retrieveType(IJavaElement element) {<a name="line.247"></a>
<FONT color="green">248</FONT>        int eType = element.getElementType();<a name="line.248"></a>
<FONT color="green">249</FONT>        <a name="line.249"></a>
<FONT color="green">250</FONT>        switch (eType) {<a name="line.250"></a>
<FONT color="green">251</FONT>          case IJavaElement.FIELD:<a name="line.251"></a>
<FONT color="green">252</FONT>            return "Field";<a name="line.252"></a>
<FONT color="green">253</FONT>          case IJavaElement.METHOD:<a name="line.253"></a>
<FONT color="green">254</FONT>            return "Method";<a name="line.254"></a>
<FONT color="green">255</FONT>          case IJavaElement.IMPORT_DECLARATION:<a name="line.255"></a>
<FONT color="green">256</FONT>            return "Import";<a name="line.256"></a>
<FONT color="green">257</FONT>                case IJavaElement.IMPORT_CONTAINER:<a name="line.257"></a>
<FONT color="green">258</FONT>            return "Import";<a name="line.258"></a>
<FONT color="green">259</FONT>          case IJavaElement.COMPILATION_UNIT:<a name="line.259"></a>
<FONT color="green">260</FONT>            return EclipseSensorConstants.CLASS;<a name="line.260"></a>
<FONT color="green">261</FONT>          case IJavaElement.JAVA_PROJECT:<a name="line.261"></a>
<FONT color="green">262</FONT>            return EclipseSensorConstants.CLASS;<a name="line.262"></a>
<FONT color="green">263</FONT>          case IJavaElement.PACKAGE_FRAGMENT:<a name="line.263"></a>
<FONT color="green">264</FONT>            return "Package";<a name="line.264"></a>
<FONT color="green">265</FONT>          default:<a name="line.265"></a>
<FONT color="green">266</FONT>            return null;<a name="line.266"></a>
<FONT color="green">267</FONT>        }<a name="line.267"></a>
<FONT color="green">268</FONT>      }<a name="line.268"></a>
<FONT color="green">269</FONT>      <a name="line.269"></a>
<FONT color="green">270</FONT>      /**<a name="line.270"></a>
<FONT color="green">271</FONT>       * Gets the element name with signature.<a name="line.271"></a>
<FONT color="green">272</FONT>       * <a name="line.272"></a>
<FONT color="green">273</FONT>       * @param element Java element, which could be class, method, field or import.<a name="line.273"></a>
<FONT color="green">274</FONT>       * @return Brief element name.<a name="line.274"></a>
<FONT color="green">275</FONT>       */<a name="line.275"></a>
<FONT color="green">276</FONT>      private String retrieveName(IJavaElement element) {<a name="line.276"></a>
<FONT color="green">277</FONT>        String name = element.toString();<a name="line.277"></a>
<FONT color="green">278</FONT>        try {<a name="line.278"></a>
<FONT color="green">279</FONT>          name = name.substring(0, name.indexOf('['));<a name="line.279"></a>
<FONT color="green">280</FONT>        }<a name="line.280"></a>
<FONT color="green">281</FONT>        catch (IndexOutOfBoundsException e) {<a name="line.281"></a>
<FONT color="green">282</FONT>          System.out.println("Where is the [ ? " + name);<a name="line.282"></a>
<FONT color="green">283</FONT>        }<a name="line.283"></a>
<FONT color="green">284</FONT>        // Trim off the meaningless "(not open)" string<a name="line.284"></a>
<FONT color="green">285</FONT>        int pos = name.indexOf("(not open)");<a name="line.285"></a>
<FONT color="green">286</FONT>        if (pos &gt; 0) {<a name="line.286"></a>
<FONT color="green">287</FONT>          name = name.substring(0, pos);<a name="line.287"></a>
<FONT color="green">288</FONT>        }<a name="line.288"></a>
<FONT color="green">289</FONT>        <a name="line.289"></a>
<FONT color="green">290</FONT>        // take off the '#' if it exists<a name="line.290"></a>
<FONT color="green">291</FONT>        name = name.replace('#', '/');<a name="line.291"></a>
<FONT color="green">292</FONT>        <a name="line.292"></a>
<FONT color="green">293</FONT>        return name.trim(); <a name="line.293"></a>
<FONT color="green">294</FONT>      }<a name="line.294"></a>
<FONT color="green">295</FONT>      <a name="line.295"></a>
<FONT color="green">296</FONT>      /**<a name="line.296"></a>
<FONT color="green">297</FONT>       * Traverses the delta change tree on java element to look for addition and deletion on<a name="line.297"></a>
<FONT color="green">298</FONT>       * java element.<a name="line.298"></a>
<FONT color="green">299</FONT>       * <a name="line.299"></a>
<FONT color="green">300</FONT>       * @param delta Delta element change.<a name="line.300"></a>
<FONT color="green">301</FONT>       * @param additions Added element holder.<a name="line.301"></a>
<FONT color="green">302</FONT>       * @param deletions Deleted element holder.<a name="line.302"></a>
<FONT color="green">303</FONT>       */<a name="line.303"></a>
<FONT color="green">304</FONT>      private void traverse(IJavaElementDelta delta, List&lt;IJavaElementDelta&gt; additions, <a name="line.304"></a>
<FONT color="green">305</FONT>          List&lt;IJavaElementDelta&gt; deletions) {    <a name="line.305"></a>
<FONT color="green">306</FONT>        // Saves the addition and deletion.<a name="line.306"></a>
<FONT color="green">307</FONT>        if (delta.getKind() == IJavaElementDelta.ADDED) {<a name="line.307"></a>
<FONT color="green">308</FONT>           additions.add(delta);<a name="line.308"></a>
<FONT color="green">309</FONT>        }<a name="line.309"></a>
<FONT color="green">310</FONT>        else if (delta.getKind() == IJavaElementDelta.REMOVED) {<a name="line.310"></a>
<FONT color="green">311</FONT>          deletions.add(delta);<a name="line.311"></a>
<FONT color="green">312</FONT>        }<a name="line.312"></a>
<FONT color="green">313</FONT>        <a name="line.313"></a>
<FONT color="green">314</FONT>        // Recursively look for changes on children elements.<a name="line.314"></a>
<FONT color="green">315</FONT>        IJavaElementDelta[] children = delta.getAffectedChildren();<a name="line.315"></a>
<FONT color="green">316</FONT>        for (int i = 0; i &lt; children.length; i++) {<a name="line.316"></a>
<FONT color="green">317</FONT>          traverse(children[i], additions, deletions);<a name="line.317"></a>
<FONT color="green">318</FONT>        }<a name="line.318"></a>
<FONT color="green">319</FONT>      }<a name="line.319"></a>
<FONT color="green">320</FONT>    }<a name="line.320"></a>




























































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